Apple Watch Series 6 USA cellular version should work in India

Yes that's the page I already linked in my original post. But what I was saying was that the active bands in India are all supported by the USA watch.

However, the potential issue could be in the US watch eSIM not being able to read/write data from the networks in India (although assuming eSIM itself is standardized, this should not be the case, not sure)

Overall I suspect it more to be a software restriction than a technical one (ie. maybe Apple wants to sell to different markets separately & not officially provide any universal solution) but maybe there's a way to work around software restrictions or maybe there aren't any actual restrictions either & if someone tries it out, it may just work.

Waiting for some data/info on that